12″ / 300 mm
Nominal diameter
49 Hz
Resonance
0.33
Q factor
95 dB
Sensitivity
± 4.7 mm
Linear excursion
500 W
Program Power
Driver
Port
Combined
Frequency response
Hz
Impedance
Ω
Impedance Phase
°
Excursion
mm
Velocity
m/s
SPL
dB
Acoustical Phase
°
Group Delay
ms
Transient response
ms
Sensitivity (1w, 1m, infinite baffle)
SPL1W
95.2
dB
Frequency response
50 - 3000
Hz
Thiele & Small parameters
Resonance frequency (free air)
fS
49.0
Hz
Mechanical quality factor
QMS
5.54
Electrical quality factor
QES
0.35
Total quality factor
QTS
0.33
Large signal parameters
Maximum linear excursion
xmax
4.7
mm
Maximum excursion before damage
xlim
8.8
mm
Air volume displaced at xmax
VD
250
cm³
Power handling
P
250
W
Program power
Pmax
500
W
Voice Coil
Nominal impedance
Z
8
Ω
DC resistance
RE
5.6
Ω
Inductance (1kHz)
LE
0.76
mH
VC Diameter
65
mm
Winding height
HVC
13.4
mm
Former material
Glass Fiber
Magnet
Force factor
Bl
17.1
N/A
Motor constant
Bl/√RE
7.23
N/√W
Air gap height
HAG
8.2
mm
Diameter
160
mm
Height
20
mm
Diaphragm
Effective diameter
260
mm
Effective area
SD
531
cm²
Moving mass
MMS
58.4
g
Moving mass (without air load)
MMD
50
g
Material
Water Resistant Treated Paper + Water Proof Front Side Treatment
Suspensions
Stiffness
KMS
5.56
N/mm
Compliance
CMS
180
µm/N
Equivalent volume to the compliance
VAS
71.7
L
Mechanical resistance
RMS
3.25
N·s/m
Surround material
Polycotton
Dimensions
Nominal diameter
12
″
300
mm
Volume occupied by the driver
2.0
L
Net weight
4.7
kg
Similar woofers to LaVoce WSF122.50
12″Bass Guitar Speaker
fS
50 Hz
SD
491 cm²
QTS
0.32
xmax
3.1 mm
SPL1W
96 dB
Bl/√RE
6.58
Pmax
500 W
12″Coaxial
fS
49 Hz
SD
531 cm²
50 - 20000 Hz
QTS
0.33
xmax
4.5 mm
SPL1W
95 dB
Bl/√RE
7.17
Pmax
800 W
12″Subwoofer
fS
46 Hz
SD
531 cm²
45 - 3500 Hz
QTS
0.31
xmax
7.0 mm
SPL1W
95 dB
Bl/√RE
7.93
Pmax
800 W